Questions tagged [hdmi]

HDMI stands for High Definition Multimedia Interface. Along with the Composite RCA, HDMI is one of the devices' two video outputs. It provides high quality digital video.

Filter by
Sorted by
Tagged with
0
votes
0answers
4 views

Full KMS causes blank screen on Pi 3 Compute Module

I am currently using a Pi CM3 on a custom PCB. The board boots fine with a desktop using fake KMS, but when using full KMS, no image is present. Boot image appears but once at desktop there is no ...
0
votes
1answer
9 views

Why is my input source not changing when I send the <Active Source> message via CEC-Client?

Problem/Question When I use CEC-Client to send the active source command to switch the TV input to a particular source, nothing happens. What am I doing wrong? Environment I have a Raspberry Pi 4 ...
0
votes
0answers
18 views

Is there a way to enable VSYNC on RPI4?

I am using Raspbian Buster with default LXDE/Openbox configuration. Screen tearing when moving windows around or watching videos is very noticeable. Is there a way to enable VSYNC on RPI4 using HDMI?
3
votes
0answers
46 views

Does the Raspberry Pi 4 support HDCP?

I could not find a definitive answer anywhere in the specs or on the web. I am looking for a device that will allow me to play Amazon Movies (and those of other platforms) in 4K. Thank you!
0
votes
0answers
28 views

HDMI man in the middle

I want to build a screen grabber that sits between HDMI devices - like a television - to capture screenshot and send to a server every interval. Before I buy hardware I do not need, can it be dome ...
-1
votes
1answer
49 views

HDMI Audio not working with Raspberry 3 B and Raspbian Buster

Volume control says "No volume control on this device" When trying to force output to 3.5 or HDMI in raspi-config, it fails with error "There was an error running option..." When running update in ...
2
votes
0answers
25 views

Turning on/off specific HDMI port on Pi 4

According to the docs, vcgencmd now can specify which hdmi port as a second argument for raspberry pi 4, so I did sudo apt update then sudo apt upgrade but vcgencmd display_power 0 7 returns error=2 ...
0
votes
0answers
17 views

(Pi4) No Display when in OTG mode unless HDMI_safe=1

Im officially stumped. I have connected my Pi4 to my PC via USB to USB-C for OTG connection. Whenever I boot with the normal PSU to the USB-C port on the Pi4, everything boots correctly (display and ...
2
votes
0answers
37 views

How to split a display into many and access all the screen

I'm trying to split the screen in raspberry-pi. and access each screen for each display I want the multiple layer in a single screen. Eg. my output screen resolution is 1024x720 in that i have to ...
0
votes
1answer
25 views

How do I list the supported resolutions of my HDMI display/monitor?

How do I list the supported resolutions of my HDMI display/monitor? On the raspberrypi website, there is a complete list of modes supported by raspberrypi but it does not list only the ones supported ...
2
votes
2answers
62 views

how to setup and mirror two visual screen (a) touch 3.5 touch screen in general 40 pin connector and (b) hdmi 1 over TV?

I have new 4GB Rasberry Pi 4. I would like to mirror a touch screen,3.5 inch TFT LCD over 40 point connector and HDMI 1 over TV. I could not connect both and mirror together. Sorry I new to Rasberry ...
0
votes
0answers
17 views

Raspberry Pi goes blank after 10 mins or so, until the resolution is changed. and repeats

so I just got a really cheap and free desktop monitor from work, that's like 1280x1024 resolution. Now when I first connected the pi to the monitor it failed to boot at all... which was weird, but ...
1
vote
1answer
75 views

Video playback on Raspberry Pi 3

I have a raspberry pi 3 connected to one of my TV's HDMI inputs. I've installed VLC, but videos won't play. The image will hang and the audio will continue to play in the background. Regardless of ...
-1
votes
1answer
80 views

Raspberry Pi 4 touchscreen misbehaving when using a secondary monitor

First of all I recorded a video on the phenomenon, this might be more descriptive than my words: video of the problem I have a project in which I have to use two displays: one that is the 7 inch ...
0
votes
1answer
35 views

No HDMI after retropie restart, every time, multiple micro sd cards?

So I install the latest image of retropie, and boot it up on my rpi3. Plug it into my hdmi arcade cab, connect to wifi, add games from pc via wifi, force audio to 3.5 or I'd have no sound, restart, ...
0
votes
0answers
66 views

Raspberry Pi 4 drops hdmi connection for a second at boot tv reconnects, drops signal again after playing any type of video

I've been having a terrible experience with my raspberry pi 4 4G, with regards to a strange problem that's occurring. I am currently running NOOBS with raspbian/libreelec, and everytime after entering ...
0
votes
0answers
116 views

What does amixer cset numid=3 3 do?

In order to solve missing audio via HDMI with Raspberry Pi 4B (Raspian Buster) I came across amixer cset numid=3 2 which didn't do the trick for me. But randomly I checked numbers from 0 to 4 and ...
3
votes
0answers
171 views

Raspberry Pi 4: Console on first HDMI screen, X11 on second HDMI screen

The new Pi 4 has two HDMI Ports. After booting Raspbian, the first screen (HDMI-0) should display the console and the second screen (HDMI-1) should display the X11 desktop. My first thought was ...
0
votes
0answers
44 views

Display rotate not working in Raspberry Pi 64 bit

I can boot with a 64bit OS on a Raspberry PI 3, but when I change display_rotate (config.txt) to 3 (270 degrees), it stuck on the 4-colour initial screen. The funny thing is that when I use a 32bit OS ...
0
votes
0answers
29 views

How to display live data and video on the pi's hdmi out port?

For a project I'm working on, I need to be able to display live data (as numbers, text etc.) and a video stream (from the pi's camera) directly to the pi's hdmi output. I know it is possible to do ...
0
votes
0answers
32 views

LCD screen not working with Raspberry Pi 3B+

I've got Raspberry Pi 3B+ and this screen and I tried to plug it up, but it's not working. OS configurations I tried: just Raspbian Waveshare drivers on same Raspbian some random drivers on same ...
0
votes
0answers
36 views

Raspberri Pi unreachable

I am totally new to the forum, linux and Rasperry Pi, which is not the best baseline, I know. I bought some Raspberry's (4B) and made two bootable SD cards. I don't like the interface of Raspbian, so ...
1
vote
1answer
323 views

How to change screen brightness on Raspberry pi 4?

Hi raspberry PI geeks! I install Raspbian OS, and connected HDMI monitor to one of micro hdmi ports on raspberry pi 4. Question - how to change brightness of a screen? I try xrandr: 1) See 2 hdmi: ...
0
votes
0answers
49 views

TVService status states bitshifting

I'm trying to write a parser for a program on the Raspberry Pi. My goal is to detect whether or not an HDMI cable is plugged into the raspberry pi, and I have settled on using /opt/vc/bin/tvservice. ...
0
votes
0answers
62 views

Dual screen: same monitor, different resolutions

I have two identical screens (2 cheap b07k32m4lj) https://www.amazon.it/Longruner-Monitor-Display-800x480-Raspberry/dp/B07K32M4LJ i'm trying to set them up to be both 1280x720 and show the same ...
2
votes
0answers
406 views

Raspberry Pi 4 - Dual Audio with Dual HDMI

I have a Raspberry Pi 4. The thing is, I want to play 2 videos at the same time, since the RPi-4 has 2 HDMI outputs. BUT I also want to have split audio. The audio from video 1 should go out over the ...
0
votes
1answer
31 views

Wifi disabled after reconfiguring HDMI

I am using a Raspberry Pi 3 A+ with Raspbian Stretch (updated/upgraded about a month ago), connected to a Manga Screen 2: http://wiki.thing-printer.com/index.php?title=Manga_Screen_2 I have used this ...
2
votes
1answer
624 views

Raspberry Pi 4 not turning off HDMI monitor on idle

In the past, the Raspberry Pi computers could be made to turn off the monitor (as opposed to leaving the backlight on with a blank screen) when the Pi turned the screen off on inactivity. This could ...
1
vote
1answer
227 views

Raspberry Pi 4 Installed screen drivers but disabled my hdmi

I bought a touchscreen and installed the drivers for it, but now my hdmi doesn't work. I am currently running Raspbian on Raspberry Pi 4 model B.And I have a 3.5 inch tft screen.I do not no what ...
2
votes
0answers
313 views

How can I get my new Raspberry Pi 4B to output 1080i video

I finally got into the Pi world with a model 4B. I've updated it to Raspian/Buster and have the network working (wireless and wired - but just using wireless right now). I'm running it using VNC-...
1
vote
0answers
715 views

Raspberry Pi 4B no video

I just bought two raspberry 4s (1Gb and 2Gb of RAM) and am unable to get the slightest video signal out of them. I tried every combination of the following components: Raspbian buster lite/desktop 5V ...
1
vote
2answers
64 views

How to extend an HDMI port of raspberry Pi

I am using raspberry pi as part of a project. Raspberry pi will be placed inside my hardware.It has a closed container. Because of the placing of other components, I can't move the position of the ...
2
votes
1answer
180 views

Minecraft Forge 1.12.2 fails to launch with HDMI television

So minecraft was working properly until I Tried to install forge. Here is the error message/log/crash report ---- Minecraft Crash Report ---- // Don't do that. Time: 7/13/19 10:48 PM Description: ...
0
votes
0answers
20 views

VLC with the 10.1 inch Seeed display will cut off videos in both windows and fullscreen mode

I'm currently running VLC on the latest version of raspbian, on a Raspberry Pi 3 model B+. I have a Seeed 10.1 inch IPS display connected to it via HDMI. To get the Seeed working correctly, I ...
6
votes
4answers
3k views

RPI3B+: What are the four components below the HDMI connector called?

I am trying to get the following RPI3B+ to work. Apparently the machine is booting ok, since I can see it using nmap on my local network: # nmap 192.168.0.23 Starting Nmap 7.70 ( https://nmap.org ) ...
1
vote
1answer
103 views

Put HDMI monitor in Sleep Mode

I have a raspberry pi running Debian. I want to set up a cron script so that the screen automatically goes into sleep mode (no power) at a given time and goes out at another time. The built-in ...
1
vote
1answer
267 views

Rpi4 - double HDMI functionality

What is the rational ( or what are the advantages ) of having a double HDMI port on the Raspberri Pi 4. Since the Pi is new, I did not find any info around and still did not tested myself- but What ...
0
votes
0answers
126 views

New Pi Model 4 hangs at most boots

Greatings all Pi eaters! Got the latest Pi "Raspbian Buster full" on a 16 gig SD card but it hangs apx 50% of the time at boot right after log messages disappear. One monitor has a valid HDMI signal ...
1
vote
0answers
128 views

HDMI power circuit on the Raspberry Pi 4

The previous models of the Raspberry Pi used different circuits to connect its 5 V power rail to the HDMI connector, i.e. How much current can I draw from each model's HDMI socket? Especially the ...
1
vote
1answer
65 views

waveshare 7" LCD H : uses & reports wrong HDMI resolution

I recently got a Waveshare 7" LCD (H) with 3B+, running Raspbian updated to buster (uname -a says Linux rpi33 4.19.42-v7+ #1219 SMP Tue May 14 21:20:58 BST 2019 armv7l GNU/Linux) I set config.txt ...
2
votes
2answers
205 views

Sending from headless Raspi to HDMI screen [duplicate]

I'm working on a small project and I need my raspberry pi (model 2B, rev a01041) to send a very simple image to a little screen (probably 10x5cm). Unfortunately, I've always thought I'd never have ...
0
votes
0answers
18 views

Should HDMI 'overscan_*' adjustments act independent of each other?

Should HDMI config.txt overscan_* adjustments act independent of each other? If not, what's happening? ... what would be the process to make predictable adjustments? For example, if overscan_left &...
0
votes
0answers
32 views

how to connect my raspberry pi to pc which has no hdmi port but a 5 usb port

I am not to find out how to connect rasberry pi to my pc which has no HDMI port Any suggestions please . Thanks
1
vote
1answer
46 views

Pi3 freezes on boot when display_rotate=1

I've been struggling with an issue with my Pi. I have a 2560 x 1440p HDMI screen that i've been trying to get to work. After getting the HDMI timings and settings from the manufacturer it shows the ...
2
votes
0answers
66 views

How do I capture and stream HDMI audio out to LAN

I have a RPi that is running videos with omxplayer and outputting to my tv. HDMI video and audio out work just fine, but I would additionally like to stream only the audio to my network (via RTP or ...
0
votes
0answers
64 views

No login prompt on HDMI console

I have a minimalistic buildroot build on RPi2 and I was using the serial on PuTTY (UART pins connected via USB) to log in as root. However, I don't see an login prompt on my monitor when I connect ...
1
vote
0answers
21 views

Is it possible to adjust the backlight of a DELL U2414H monitor connected via HDMI?

I have a magic mirror I'm building that has a RPI at it's heart but even with the screen blanked at night, I can see the backlight glowing. Is there any way to adjust backlight brightness via the ...
0
votes
0answers
22 views

How to extend desktopacross to HDMI panels HDMI only

So with two waveshare 7" touch panels HDMI panels, an HDMI splitter and a raspberry pi zero w, I can mirror the display. I am not sure how to extend the screen across two HDMI panels. Does anyone ...
1
vote
0answers
18 views

How do I stop my HDMI going off

for some reason, after a while the screen connected to my RPI 3B+ goes off, and stays off, until I unplug it and plug it back in again. I only run in console mode, and running alt+F[1-4] does nothing,...
0
votes
0answers
217 views

HDMI port is not working

I have been using an RPI3B+ for around 2 months . I used it remotely most of the time. Recently, when I was trying connect it with a monitor via HDMI to VGA converter , it didn't work at all. I ...